San Diego, CA
TANDEM DIABETES CARE INCTNDM— Latest position per institution from SEC 13F filings
15
Institutional holders
80.80M
Total shares held
1.59B
Estimated value
4.04M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
11.58M
Value
174.79M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
11.12M
Value
448.14M
Filed
Jun 30, 2024
VANGUARD GROUP INC
CIK 102909
Shares
7.34M
Value
161.36M
Filed
Dec 31, 2025
UBS GROUP AG
CIK 1610520
Shares
6.33M
Value
95.45M
Filed
Jun 30, 2026
EMINENCE CAPITAL, LP
CIK 1107310
Shares
5.17M
Value
152.94M
Filed
Dec 31, 2023
SESSA CAPITAL IM, L.P.
CIK 1595849
Shares
5.10M
Value
76.96M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
4.30M
Value
64.88M
Filed
Jun 30, 2026
FIRST LIGHT ASSET MANAGEMENT, LLC
CIK 1600004
Shares
3.38M
Value
51.06M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
3.10M
Value
46.73M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
2.85M
Value
43.03M
Filed
Jun 30, 2026
GW&K INVESTMENT MANAGEMENT, LLC
CIK 1082917
Shares
2.57M
Value
38.77K
Filed
Jun 30, 2026
HOOD RIVER CAPITAL MANAGEMENT LLC
CIK 1578177
Shares
2.55M
Value
30.98M
Filed
Sep 30, 2025
JENNISON ASSOCIATES LLC
CIK 53417
Shares
2.33M
Value
35.18M
Filed
Jun 30, 2026
PARADICE INVESTMENT MANAGEMENT LLC
CIK 1620275
Shares
2.02M
Value
30.54M
Filed
Jun 30, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 884414
Shares
2.01M
Value
30.28M
Filed
Jun 30, 2026
FREESTONE GROVE PARTNERS LP
CIK 2007591
Shares
1.87M
Value
28.16M
Filed
Jun 30, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
1.85M
Value
27.98M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.80M
Value
27.18M
Filed
Jun 30, 2026
DRIEHAUS CAPITAL MANAGEMENT LLC
CIK 938206
Shares
1.79M
Value
26.97M
Filed
Jun 30, 2026
STEPHENS INVESTMENT MANAGEMENT GROUP LLC
CIK 1314440
Shares
1.74M
Value
32.39M
Filed
Jun 30, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 11.58M | 174.79M | Jun 30, 2026 |
| 2 | BLACKROCK FINANCE, INC. | 1364742 | 11.12M | 448.14M | Jun 30, 2024 |
| 3 | VANGUARD GROUP INC | 102909 | 7.34M | 161.36M | Dec 31, 2025 |
| 4 | UBS GROUP AG | 1610520 | 6.33M | 95.45M | Jun 30, 2026 |
| 5 | EMINENCE CAPITAL, LP | 1107310 | 5.17M | 152.94M | Dec 31, 2023 |
| 6 | SESSA CAPITAL IM, L.P. | 1595849 | 5.10M | 76.96M | Jun 30, 2026 |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 4.30M | 64.88M | Jun 30, 2026 |
| 8 | FIRST LIGHT ASSET MANAGEMENT, LLC | 1600004 | 3.38M | 51.06M | Jun 30, 2026 |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.10M | 46.73M | Jun 30, 2026 |
| 10 | STATE STREET CORP | 93751 | 2.85M | 43.03M | Jun 30, 2026 |
| 11 | GW&K INVESTMENT MANAGEMENT, LLC | 1082917 | 2.57M | 38.77K | Jun 30, 2026 |
| 12 | HOOD RIVER CAPITAL MANAGEMENT LLC | 1578177 | 2.55M | 30.98M | Sep 30, 2025 |
| 13 | JENNISON ASSOCIATES LLC | 53417 | 2.33M | 35.18M | Jun 30, 2026 |
| 14 | PARADICE INVESTMENT MANAGEMENT LLC | 1620275 | 2.02M | 30.54M | Jun 30, 2026 |
| 15 | JACOBS LEVY EQUITY MANAGEMENT, INC | 884414 | 2.01M | 30.28M | Jun 30, 2026 |
| 16 | FREESTONE GROVE PARTNERS LP | 2007591 | 1.87M | 28.16M | Jun 30, 2026 |
| 17 | CITADEL ADVISORS LLC | 1423053 | 1.85M | 27.98M | Jun 30, 2026 |
| 18 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.80M | 27.18M | Jun 30, 2026 |
| 19 | DRIEHAUS CAPITAL MANAGEMENT LLC | 938206 | 1.79M | 26.97M | Jun 30, 2026 |
| 20 | STEPHENS INVESTMENT MANAGEMENT GROUP LLC | 1314440 | 1.74M | 32.39M | Jun 30, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.